Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 775 [Rate centres in NPA 775] [Dial plan for NPA 775]

NXX: 581

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
775-581 A Topaz Lake NV RENONV126MD  4805 LEVEL 3 COMMUNICATIONS, LLC - NV 720      
775-581 0 Topaz Lake NV RENONV126MD  4805 LEVEL 3 COMMUNICATIONS, LLC - NV 720      
775-581 1 Topaz Lake NV   145J TERRA NOVA TELECOM INC. 720   2025-07-07   
775-581 3 Topaz Lake NV RENONV126MD  4805 LEVEL 3 COMMUNICATIONS, LLC - NV 720   2006-01-20   
775-581 4 Topaz Lake NV RENONV126MD  4805 LEVEL 3 COMMUNICATIONS, LLC - NV 720   2005-07-26   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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